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VPLS-LDP VPN

The VPLS-LDP VPN, based on the IETF Lasserre/Kompella draft, is implemented by Cisco and all other vendors except Juniper. To configure a VPLS-LDP VPN, perform the following steps:

  1. First identify, for the VPLS-LDP, a set of PEs with available PE-facing-CE interfaces that can be assigned as VPLS attachment circuits.
  2. Next, bring up the Add VPN window and select VPLS-LDP VPN. In this example, we will configure a VPLS instance named VPLS-LDP0.
    Figure 1: Creating a VPLS-LDP VPNAdd VPN configuration window with fields for customer, service template, VPLS-LDP type, VPN name, VPN template, PE interface template, VPLS ID, and navigation buttons back, next, close, help.
  3. Click on Next to take you to the screen to specify a VCID and to select the PEs for the VPLS instance, as shown in the following screen. If you prefer, you may select some or all the PEs in the PE Selection tab in the next screen, as described in the next step. Click on Next to continue.
    Figure 2: Select PEs and Specify a VCIDAdd VPN wizard interface showing Provider Edge as selected VPN type. Dublin, Amsterdam, London in Selected list; Berlin, Paris, Valencia in Available.
  4. As described in the previous step, you may select PEs in the PE Selection tab, as shown in the following screen. If you have already selected all the PEs in the previous step, then click on the Details tab to continue.
    Figure 3: Additional PEs may be select in the PE Selection tabNetwork configuration interface for setting up VPLS using LDP. Central cloud AS65534 connects PE devices. Left panel shows selected objects GV1, GV2, V_C1 with no interface. Right panel lists available devices EP_R9, ESV_1, E_V1, E_V2, E_V3. Properties section for configuring interfaces, IPs, VRF, connectivity. Navigation buttons Back, Finish, Cancel, Help.
  5. Next, you are ready to configure the PE-facing-CE attachment circuits; this includes specifying the interface and circuit ID, bandwidth, and encapsulation.
    Figure 4: Configure VPLS-LDP DetailsAdd VPN configuration interface for VPLS using LDP with nodes GV1, GV2, V_C1, dot1qtrunk encapsulation, and 100M bandwidth.

    The encapsulation types for various vendors are:

    • Cisco: dot1qaccess, dot1qtunnel, dot1qtrunk.

    • Foundry: tagged, untagged.

    • Tellabs, Riverstone: tagged, untagged, q-in-q.

    The following figures show how an interface is assigned: First, click on the magnifying glass next to Interfaces and choose Add. Then in the Select Interface window, pick an available interface. Finally, type in the VCID for the interface

    Figure 5: Select an interfaceGUI for configuring network interfaces with left panel listing interfaces and right panel showing selected interface properties including IP address and status.
    Figure 6: Assign the Circuit ID to the interfaceDialog box prompting for circuit unit number of FastEthernet0/1, input field with 137, OK and Cancel buttons.
  6. Next, you will specify, in turn, each remote peer and the transmit LSP used to reach the peer. Click on the magnifying glass next to Remote Peers to bring up the Add Remote Peer window, where you can choose the remote peer and the transmit LSP from the dropdown selection menus.
    Figure 7: Configure PE peersDialog box titled Add Remote Peer with dropdowns for Remote GV2 and Transmit LSP LSP_81 plus Add and Cancel buttons.
  7. The following figure shows the assignment details completed for our VPLS instance, VPLS-LDP0. Click on Finish to add the VPLS instance to the model.
    Figure 8: VPLS-LDP instance details configuredNetwork configuration interface for setting up a VPN using VPLS with LDP. Shows PE selection, node details, and remote peers.